Semester 2-inheritance Of Traits Flashcards

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1
Q

Rudiments happen in what process

A

Embryology

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2
Q

Hos genes are

A

Can cause changes in body parts such as mutations

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3
Q

Similar chemistry structures and processes are found in cells of

A

Molecular biology

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4
Q

Similar dna sequences mean that

A

They are more closely related

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5
Q

Very different dna sequences show

A

That they are split longer ago

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6
Q

The enviornment selcts what

A

Selection pressures and or adaptations

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7
Q

What does fitness mean

A

You have sucesfully survived and reproduced

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8
Q

The stronger and more beneficial traits will

A

Pass on to their offsoring

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9
Q

Adaptations can be —– or —

A

Physical or behavioral

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10
Q

Variation is

A

Differences or variety if soecies or between soecies in an enviornment

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11
Q

Each loving soecies has what from their ancestors

A

Descended with modification

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12
Q

An adaptation is

A

Any inherited characteristic that might increase their chances of survival

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13
Q

Rudiments are

A

The remains of an ancestral feature

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14
Q

If an adaptation is sucessful organisms will

Hint:def. of fitness

A

Survive and reproduce

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15
Q

Individuals with beneficial characteristics have

A

High levels of fotness

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16
Q

Dwm stands for

A

Descent with modification

17
Q

Individuals with terrible and weak characteristics will have

A

Will die or leave very few offspring (Low fitness levels)

18
Q

Homolgous structures means

A

Same structures and same functions

And are from close relatives

19
Q

Analogous structures is

A

When they have similar structures as well but the have distant relatives and they have similar finction BUT they come from a different origin not same origin like homologous

20
Q

What does vestigial structures mean and what is an exampel

A

It means that they are structures that no longer have a function in modern day organisms . (Such as the appendix)

21
Q

Embryology

A

Study of developing embryos that show similarities between organisms. The clser they are rekated the more similar they looked like before further development into an adult

22
Q

Molecular biology

A

Study of dna and its similarities amongst organisms.

The more related the more amino acids or dna sequences in common

23
Q

What is divergent evolution

A

Organisms move to other places and evolved traits that suited them for a particular enviornment

24
Q

What is convergent evolution

A

Even if theye evolved from a different common ancestor if they are living in the sane enviornment they will have similar traits

25
Q

Dna sequences provides a what evidence of evolution

A

It provides a strong evidence of evolution

26
Q

Transitional forma

A

Provide evidence of intermediate forms that link one group of organisms to another

27
Q

Embryos look much more similar when

Many different vertebrae

A

When they are in the early stages they look similar

28
Q

Comparitive anatomy includes

A

Homologous and analogous structures

29
Q

Biogeogrpahy is

A

The study of how and why plants and animals live where they do

30
Q

Which process is the strongest evidence for common ancestry

A

dna sequence

31
Q

Bats and birds are considered

A

Homologous structures because. Have the smae function in close relatives

32
Q

Tiktaalik is a what form and why

A

It is a transitional form because they have the characteristics of both a fish and a tetrapod (four limbs)